Baffle block and combustion-chamber top



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EAGLES@ R. DWADLEIGH BAFFLE BLOCK AND COMBUSTION CHAMBER TOP Filed Abril 30. 1921 .FIGURE 3 Vacuna 4* A TTORNE Y enemies .hay ie, ieee.

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RUEUS I). WADLEGH, OF OLD TOWN, M.AIBL'ELr Barrin BLOCK AND oorieusfrroneonaiunnanor.

appiieauon mea Api-i1 3o, 1921. serial no. 465,714-,

.To @ZZ whom I? may conce/Mt:

Be it known that I, RUFUs D. VADLEIG a citizen of the United States, residing at Old Town, in the county of Penobscot and State of Maine, have invented certain lnew and useful .lmprovements in Batlie Blocks and Combustion-Chamber Tops, of which the following is a speciiication.

My device consists of an improved baiileblock for use with horizontal tubular boilers and is fully illustrated in the accompanying drawings in which- Figure l is a plan showing a plurality of fire bricks secured' in a metal frame and bound together by the frame and transverse bolts.

Figure 2 is a sectional elevationv of the device of Fig. l looking in the direction of the transverse bolts.

Figure 3 is an end elevation.

Figure l is an isometric view showing a boiler-head and my device suspended land placed as in actual use.

Similar letters refer to corresponding parts throughout the figures.

n the operation of horizontal tubular boilers the flame and gases under the boiler pass forward to combustion chamber beyond the boiler head and are deliected backward through the boiler tubes. To resist the intensev heat the combustion chamber is formed of solid walls of iire brick or other material, as nearly non-combustible as possible, and is made as permanent as practicable, but nevertheless vis rapidly destroyed and requires frequent renewals, which means drawing the fire and a long delay. p'

My device is a detachable, removable top to the combustion chamber. It can be removed and another substituted in a few moments without drawing the fire in the furnace and thus a great saving in time is accomplished.

I provide a metal frame, preferably rectangular, and formed of thin flat strips of iron plainly shown in Fig. l at A, and held together by transverse bolts B. in this frame are fitted rectangular hre-clay bricks C the ends of which are slotted transversely to receive and lit one half of the thickness of the transverse bolts B, as shown in- Fig. 2, and the bricks are thus held in position and prevented from dropping. If the bolts are of an inch in diameter the slots in the bricks would be of an inch deep.

Before fitted in the frame the brick are dipped in liquid clay and when fitted their tops are covered with of an inch of asbestos and the whole is tight-ly bound together by turning up nuts upon the ends of thetran. verse bolts, B. i

This, the starting point of my device, I call a Iblock, indicated throughout the figures by D and of course it may be made of any convenient size, but I prefer to use a number of small blocks'secured together in a frame forming a group or battery as shown in Fig. rather than one of larger size.

Each block or battery D is suspended by a hanger E depending from a trussF resting on pillars GG rising about. 16 inches above the walls of theboiler-setting and so placed as to bring one end of the battery D flush againstv the boiler head, and the hangers E engage with eye-bolts H connected with the transverse bolts B. The other end of the battery is supported upon la ledge upon the rear wall of the combustion chamber.

When one or more of the bricks C form'- ing ablock D isso eroded as to be no longer fit for use, the battery is raised slightly and moved back from the boiler toward the rear wall of the setting, the asbestos packing is picked out or knocked out, the block disengaged from its hanger and removed, and a new block substituted, and the battery is replaced in position against the boiler head. Any suitable non-combustible material may be used in place of tire brick. i

By this form vof construction, when a brick C is eroded it may be removed from its block'D by chipping the portion of the brick above the slot formed to receive the bolt B securing it in the block, and hammering the brick down and out of the block, and sim' `ilarly a new brick may be substituted by chiping off the portion of the new brick below the slot which receives the'bolt, thus leaving a shoulder which rests upon the bolt when the new brick is hammered down to place. As the blocks may be formed of any convenient size and weight it is obvious that the removal of a block may be easily accomplished as also the removal of bustible brick, each having a 'transverse slot upon one of its faces; bolts .passingtliough said slotsand the sides of said frame; md

boiler; the boiler furnace; 'a combustiom chamber; amd.l a baille-block Consisting of a.v

immo, a plurality of non-combustible buck,- ouch having a transverse slol upon oneofv :head support. v

its faces, bolts passing-throughsaid slots 10 and fthe sides of said frame, and'means oi detachablyhanging said blocks to an ovei-,v`

` v'nniifis D 'WADLEIGH In presence olf- 'v l f HARRIS Jg.' Blinmmnw,` Fmnji A, PATTERSON. 

